印度采购需求：混凝土外加剂、混凝土高效减水剂、水泥研磨添加剂、建筑化学品、绿色混凝土、水泥助磨剂

I'm looking for SR and WR in powder form for an upcoming project. Could you provide details on your available options, including specifications such as particle size, solubility, and any relevant certifications? Additionally, I'd appreciate information on pricing for different quantities, lead times for delivery, and any potential discounts for bulk orders. Please also let me know about your packaging options and whether you can accommodate specific shipping requirements. If there are any samples available, I'd love to evaluate the quality before making a larger commitment. Looking forward to your prompt response so we can move forward quickly.